To DNS Name [Reverse DNS]

Transform Meta Info

This transform reverse resolves an IP address to a DNS name using plain old DNS

Data Source

Paterva/Host

Owner

Paterva

Author

Roelof Temmingh (roelof@paterva.com)

Input

IPAddress

Output

DNSName

Description

This transform uses stock standard reverse DNS to determine the DNS name associated with the IP Address. Note that not all IP addresses will reverse resolve. It is the responsibility of the owner of the netblock where the IP resides (or who ever this task was delegated to) to populate the records. Also note that reverse DNS entries do not have to match forward DNS - e.g. www.abc.com can resolve to 1.2.3.4 but 1.2.3.4 does not have to resolve to www.abc.com. For more about DNS you can read the Wikipedia entry here.